646111032 has 64 divisors (see below), whose sum is σ = 1926305280. Its totient is φ = 176575872.

The previous prime is 646111019. The next prime is 646111051. The reversal of 646111032 is 230111646.

646111032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 646110993 and 646111011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79743 + ... + 87470.

It is an arithmetic number, because the mean of its divisors is an integer number (30098520).

Almost surely, 2^646111032 is an apocalyptic number.

It is an amenable number.

646111032 is an abundant number, since it is smaller than the sum of its proper divisors (1280194248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646111032 is a wasteful number, since it uses less digits than its factorization.

646111032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167252 (or 167248 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 646111032 is about 25418.7142082364. The cubic root of 646111032 is about 864.5080709431.

Adding to 646111032 its reverse (230111646), we get a palindrome (876222678).

The spelling of 646111032 in words is "six hundred forty-six million, one hundred eleven thousand, thirty-two".